Dumping-car.



R. W. DAVIES.

DUMPING CAR.

APPLICATION FILED MAR.1,1912.

Patented Dec. 2, 1913.

2 SHBIJTS-SHEBT 1.

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| n n l n l l l l I l COLUMBIA PLANoaR/PH co.. WASHINGTON. D. c.

R. W. DAVIES.

DUMPING CAR.

APPLICATION FILED MAR. I, 1912.

1,079,977, Patented Dec. 2,1913.

2 SHEETS-SHEET 2.

COLUMBIA PLANOGRAPH c0.,wASHlNaTON. D. c.

RODERIC'K w. D'AvIEs, OF'CHICAGOHEIGHTS, ILLINOIS.

iTJU'MPINe'f-CAR.

Specification of Letters Patent.

Patenti-,anca 2, 1913'.

Application ledlvfarch 1, 1912.," Serial No. 680,853.:

T 0 all whom t may concern Be it known that I, RoDERIoK-V. DAvms, a citizen of the United States, residing. at

Chicago Heights, in the county of Cook-andA State of Illinois, have invented certain new and useful Improvements in Dumping-Cars, of which the following is a specification.

My invention relates to dumping cars and is particularly designed to provide a structure of dumping car comprising a plurality of doors hinged at their inner ends and desirably along parallel lines at the approximate center of the car.

In the production of a dumping car embodying the advantageous features of my invention, I aim to eliminate excessive stress upon the parts and to decrease the requisite power for opening and closing the doors of the dumping car by providing comparatively lexible bars connected to the outer corners of the doors and controlled by. sprockets upon shafts driven by hand operated worm gearing.

Actual practice has demonstrated that excessive stress and consequent tendencies to breakage, are largely obviated by the provision of my type of controlling mechanism for the doors of a dumping car.

The preferred embodiment of my invention is shown in the accompanying drawings, in which similar characters of reference designate corresponding parts, and in which- Figure 1 is a top plan View of a portion of a dumping car, Fig. 2 is an end elevation thereof, Fig. 3 is a vertical sectional view taken on line 3 3 of Fig. 1 and looking in the direction of the arrows, Fig. 4 is a detail plan view of a portion of the outer bars for the doors of my dumping car, and, Fig. 5 is an edge elevation of the structure show n in Fig. 4.

In the drawings, the dumping car is shown at 1 as comprising a plurality of doors 2 varying in number according to circumstances, and pivoted at their inner edges to the center sill 3 by hinge members 4. These doors are desirably provided with castings 5 to which are pivo-tally connected ladder bars comprising sections 6, 7 and 8 of a size to extend and fit within pockets 9 formed in the sides of the car. These pockets 9 also serve to reinforce and brace the side of the car against bulging.

Extending longitudinally the length of the car and just without the lower corner ythereof are shafts 10', desirably two for each .iside of the car.- These shafts carry sprock- .ets111- suitably positioned to coact with and control-the movement of the pivotally connected ladder sections 6, 7 and 8 pivotally connected to each other. In addition, the ends of the shaft 10 are also provided wit-h worm wheels 12 meshing with worms 13 upon manually operable shafts 14 provided with hand wheels 15. Each ladder section lis preferably made of two side members 16 and 17 rigidly spaced apart by a plurality of rung members 18. These rung members are adapted to coact with the sprocket teeth and thereby control the movement of the swinging doors.

It will be observed that I have provided a structure whereby all of the doors along a half of one side of a car, may be manually controlled by the rotation of a hand wheel. It will be observed that this is effected through the medium of elements connected to the outer extremities of the doors, which elements are vof such form as to insure sufficient rigidity and guard against breakage from strain. In addition to this, the utilization of a worm wheel and worm for controlling the sprocket shafts, serves to produce an automatic lock for the doors at any position of adjustment.

What I claim, is

1. A dumping car comprising a body portion, a plurality of doors hinged at their inner edges, a plurality of ladder sections pivotally connected to each other and to the outer edges of said doors, and hand controlled sprocket wheels for operating said ladder sections for altering the posit-ion of said doors.

2. A dumping car comprising a body por.

be telescoped vertically within a pocket formation on the side of the car, driving sprockets for said flexible sections for altering the position of said doors, and driving means for rotating said sprockets.

4. A dumping car comprising a body portion, a plurality of doors hinged at their inladder sections, and a Worm and Worm Wheel 1- 1 ner edges, ladder sections pivotally connectdriving means for said sprockets.

ed to each other and connected to the outer In testimony whereof I aix my signature edges of said doors and comprising a pluin presence of tWo Witnesses.

rality of side members arranged in pairs,

each pair being pivotally connected to its RODERICK W' DAVIES succeeding pair, spaced rungs interposed be- Witnesses:

tween the pivotal connections of each pair MARGARET DAVIES,

of members, sprockets for operating said D. S. HILL.

Copies of Vthis patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G. 

